Automatic lexical adaptation of Russian texts

The article describes a method for lexical simplification of Russian text, using a specially marked base of synonyms and a set of rules, which allows automatic lexical replacement of words and phrases with restoration of the correct syntax and preservation of the text semantics. To form a marked database of synonyms, dictionaries of synonyms that are in the public domain were used. To preserve semantics, an analysis and reduction of synonymous series was carried out, the frequency of members of the synonymous series was analyzed in order to select a dominant, and entries in dictionaries were marked and a mechanism for processing labels was proposed to comply with the syntax rules in a simplified text. A base of production rules has been developed to preserve the correct syntax after lexical adaptation of the text, allowing for the correct replacement of individual words, phrases with one word and phrases with a phrase.